package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.mapper.EmployeeMapper;
import com.itheima.reggie.service.EmployService;
import com.sun.org.apache.regexp.internal.RE;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;

import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController//返回json数据
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployService employService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //把员工id存到Session中
//        1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

//        2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employService.getOne(queryWrapper);

//        3、如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败！");
        }

//        4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败！");
        }
//        5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用！");
        }
//        6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);

    }

    /*
    员工退出登录功能
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
//        1、清理Session中的用户id
        request.getSession().removeAttribute("employee");
//        2、返回结果
        return R.success("退出成功");

    }

    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        log.info("新增员工，员工信息：{}", employee.toString());
        //初始密码123456，MD5加密
//        String password = employee.getPassword();
//        DigestUtils.md5DigestAsHex(password.getBytes());
//        employee.setPassword("123456");
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        //还有几个属性
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //获取当前用户的id

        //long empId = (long) request.getSession().getAttribute("employee");
        //employee.setCreateUser(empId);
       //  employee.setUpdateUser(empId);
        employService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        log.info("page={},pageSize={},name={}", page, pageSize, name);
        //分页构造器
        Page pageInfo = new Page(page, pageSize);

        //条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id修改员工的信息  禁用
     *
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> updata(HttpServletRequest request, @RequestBody Employee employee) {
        log.info(employee.toString());
       // log.info("employee:{}", employee);
        //long empId = (long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        long id = Thread.currentThread().getId();
        log.info("线程id为：{}",id);
        employService.updateById(employee);
        return R.success("员工信息修改成功");
    }

    /**
     * 根据员工id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable long id){
        log.info("根据id查询员工信息...");
        Employee employee = employService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到该员工信息");
  }
}
